php - Star Rating Form - Email Rating -

i have form has star rating system. users vote 1 through 5 stars. works great on front-end, when it's emailed through comes through this:

'rating-input-1: on'

i want give me number scored (1 - 5) rather 'on'. ideas? html , css code below, please let me know if need else.

html:

<span class="rating">           <input type="radio" class="rating-input"             id="rating-input-1-1" name="rating-input-1">         <label for="rating-input-1-1" class="rating-star"></label>         <input type="radio" class="rating-input"             id="rating-input-1-2" name="rating-input-1">         <label for="rating-input-1-2" class="rating-star"></label>                <input type="radio" class="rating-input"             id="rating-input-1-3" name="rating-input-1">         <label for="rating-input-1-3" class="rating-star"></label>                  <input type="radio" class="rating-input"             id="rating-input-1-4" name="rating-input-1">         <label for="rating-input-1-4" class="rating-star"></label>                        <input type="radio" class="rating-input"             id="rating-input-1-5" name="rating-input-1">         <label for="rating-input-1-5" class="rating-star"></label>     </span> 

css:

.rating {           overflow: hidden;       }        .rating-input {           position: absolute;           left: 0;           top: -50px;       }       .rating:hover .rating-star:hover,       .rating:hover .rating-star:hover ~ .rating-star,       .rating-input:checked ~ .rating-star {           background-position: 0 0;       }       .rating-star,       .rating:hover .rating-star {           float: right;           display: block;           width: 30px;           height: 30px;           background: url(images/stars2-2.png) 0 -30px;       }        .rating-star:hover {             -webkit-transition: -webkit-width 0.5s;     -moz-transition: -moz-width 0.5s;     -ms-transition: -ms-width 0.5s;     -o-transition: -o-width 0.5s;     transition: width 0.5s;       } 

maybe can try add 'value' attribute every input. this:

<input type="radio" class="rating-input" id="rating-input-1-1" name="rating-input-1" value="1">  <input type="radio" class="rating-input" id="rating-input-1-2" name="rating-input-1" value="2">